Trigger



FIG. 1 is an isometric view of a top, front, and left side of an ornamental design for a trigger;

FIG. 2 is a front elevational view of the trigger of FIG. 1;

FIG. 3 is a rear elevational view of the trigger of FIG. 1;

FIG. 4 is a left side elevational view of the trigger of FIG. 1;

FIG. 5 is a right side elevational view of the trigger of FIG. 1; and,

FIG. 6 is a top plan view of the trigger of FIG. 1.

The broken lines are for the purpose of illustrating environmental structure and form no part of the claimed design. 

The ornamental design for a trigger, as shown and described. 